Uterine dilator



(No Model.) I I A. J. BEAVIS. UTERINE DILATOR.

Patented 00t.17,189 3.

, WITNESSES:

' ArromvErs;

UNITED STATES PATENT OFFICE.

ARTHUR J. BEAVIS, OF ASPEN, COLORADO.

UTERINE DILATOR.

SPECIFICATION forming part of Letters Patent No. 507,060, dated October 17, 1893.

Application filedFebruary 6, 1893- Serial No; 461,237. (No model.)

bination and arrangement of parts as will hereinafter be first fully described and then specifically pointed out in the claims, reference being had to the accompanying drawings in which Figurel is a side elevation of my improved dilator. Fig. 2 is a view of the slide rod or sound detached. Fig. 3 is a view of the rubber cap and Fig. 4 is a cross section of the same on the line 4-4: Fig. 1.

Thisinstrument which oifers anovel means for the rapid and safe dilation of the cervical canal and the urethra, consists of a solid steel rod or sound A, fitting and held for movement, in a hollow cylinder B. This cylinder is formed of a hollow piece of steel open at one end and of proper caliber and length to admit of the introduction of the steel sound A, except two inches at the smallest end which projects from the cylinder as at awhen such rod is adjusted to its innermost position. To hold the sound A firmly at any point in its backward or forward motion within the cylinder B, such cylinder has a slot 1) along six inches of its upper surface, through which passes aset screw 0 connected to the sound as most clearly shown in Fig. 4. On the sides of the cylinder is shown a pair of long forceps D, the jaws of which are held in close apposition with the steel rods by means of strong springs d d, under the handle ends d d, the outer or clamp ends of such forceps projecting inward over the outer end of the cylinder B whereby to clamp against the projecting end of the same when in place.

The manner in which my improved instrument is used is best explained as follows: Having the steel rodor sound in position inside of the cylinder, the handles of the forcops are pressed inward, opening the jaws,

when the rubber cap J is pushed over the sound at its smaller end till it is stopped by the cylinder. The handles of the forceps are then released, when the jaws spring back and take firm hold of the lower part of the rubber cap. Holding the set screw of the sound firmly by the thumb and finger of one hand, with the other the operator draws the cylinder backward along the sound, and as the rubber cap is engaged in the jaws of the forceps it is necessarily stretched over all that part of the sound which has thus been pushed out of the cylinder. By this stretching the rubber is reduced toone third of its original diameter. Now the sound with the rubber cap tightly stretched over it is fixed in its position by means of the set screw and then 1ntroduced into the cervical canal beyond the internal 0s. The pressure of the screw is then released and the rubber cap allowed to gradually regain its original position and diameter. The jaws of the forceps are disengaged from the rim of the rubber cap, the 1nstrument is withdrawn, and the cap is left in aim.

The withdrawal of the rubber cap is accomplished either by means of the dressing forceps, or by a cord previously fastened around its rim.

In the manufacture, the instrument is made in four different sizes with curved as well as straight sounds, adapted to the uterine canal and to the male and female urethra. The rubber caps are also made of any desired size, from one eighth to two inches in diameter.

By the use of an instrument constructed in this manner it will serve to dilate the cervical canal, or the urethra, with greater ease to the operator and safety to the patient than has ever before been accomplished by means of any artificial contrivance.

Having thus described my invention, what I claim, and desire to secure by Letters Pa ent, is-

1. In an instrument for the purpose described, the combination of the cylinder B, the rod or sound A adjustably held therein, the spring forceps D and the removable rubber cap J all arranged as and for the purposes described.

2. In an instrument for the purpose dehaving their ends projected inward over the upper end of such cylinder, all substantially as and for the purpose described.

scribed, the combination of the cylinder B, slotted as at b the sound or rod A movably held in such cylinder and provided with a set 5 screw held to pass through the slotted cylinder, the removable rubber cap J and the ARTHUR J. BEAVIS.

HENRY H. CLARK, WILLIAM W. CooLEY.

spring forceps D pivoted on the cylinder and 

